Home / 1,349,063.76-1,861,814.13-768,311.46

Finding the Fourth Proportional to 1,349,063.76, 1,861,814.13 and 768,311.46

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Solution

The fourth proportional to 1,349,063.76, 1,861,814.13 and 768,311.46 is: 1,060,330.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,349,063.76 : 1,861,814.13 = 768,311.46 : x
  2. Step 2: Convert to fraction form
    1,349,063.76/1,861,814.13 = 768,311.46/x
  3. Step 3: Cross multiply
    1,349,063.76x = 1,861,814.13 × 768,311.46
  4. Step 4: Simplify right side
    1,349,063.76x = 1,430,453,132,468.93
  5. Step 5: Solve for x
    x = 1,430,453,132,468.93/1,349,063.76
  6. Step 6: Final answer
    x = 1,060,330.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.